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Mirrors > Home > MPE Home > Th. List > subge0d | Structured version Visualization version Unicode version |
Description: Nonnegative subtraction. (Contributed by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
leidd.1 | |
ltnegd.2 |
Ref | Expression |
---|---|
subge0d |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | leidd.1 | . 2 | |
2 | ltnegd.2 | . 2 | |
3 | subge0 10541 | . 2 | |
4 | 1, 2, 3 | syl2anc 693 | 1 |
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